:root {
    --ink: #ebf6ff;
    --nav: #10324a;
    --nav-soft: #174a63;
    --hero-top: #0f4f72;
    --hero-bottom: #0d3550;
    --hero-mist: #8ec8b4;
    --body-bg: #eaf3f6;
    --surface: #f4fbfd;
    --soft-blue: #3f97d8;
    --soft-green: #8fcebc;
    --text-dark: #143347;
    --line: #c8dbe3;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
}

body {
    font-family: "Manrope", "Segoe UI", Tahoma, sans-serif;
    background: var(--body-bg);
    color: var(--text-dark);
}

body.pdf-open {
    overflow: hidden;
}

body.friends-open {
    overflow: hidden;
}

.main-nav {
    position: sticky;
    top: 0;
    z-index: 30;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 12px clamp(14px, 3vw, 34px);
    background: linear-gradient(100deg, var(--nav), var(--nav-soft));
    color: var(--ink);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.brand-wrap {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.brand-logo {
    width: clamp(116px, 15vw, 146px);
    height: auto;
}

.brand-name {
    white-space: nowrap;
    font-size: clamp(1rem, 1.9vw, 1.85rem);
    font-weight: 700;
}

.menu {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.menu a {
    color: #e9f3ff;
    text-decoration: none;
    font-weight: 600;
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: background-color 180ms ease, color 180ms ease;
}

.menu a:hover,
.menu a.active {
    background: rgba(47, 135, 209, 0.2);
    color: #ffffff;
}

.menu a.menu-login {
    border: 1px solid rgba(228, 244, 255, 0.74);
    background: transparent;
    color: #f2f8ff;
    font-weight: 700;
    padding-inline: 14px;
}

.menu a.menu-login:hover {
    background: rgba(201, 233, 255, 0.16);
    border-color: #f2f8ff;
}

.hero {
    position: relative;
    width: 100%;
    min-height: min(74vh, 780px);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        radial-gradient(circle at 72% 42%, rgba(142, 200, 180, 0.3), transparent 35%),
        radial-gradient(circle at 16% 70%, rgba(167, 223, 210, 0.18), transparent 45%),
        linear-gradient(145deg, var(--hero-top), var(--hero-bottom));
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 35% 58%, rgba(126, 190, 224, 0.2), transparent 45%),
        radial-gradient(circle at 71% 64%, rgba(44, 101, 140, 0.3), transparent 42%);
    z-index: 1;
}

.hero-bubbles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-bubbles-back {
    z-index: 0;
}

.hero-bubbles-front {
    z-index: 3;
}

.hero-left-floaters {
    position: absolute;
    z-index: 0;
    left: calc(clamp(-10px, 2vw, 18px) + 75px);
    top: 8%;
    width: min(42vw, 480px);
    height: 84%;
    pointer-events: none;
}

.floater-card {
    position: absolute;
    left: var(--x);
    width: var(--w);
    top: var(--t);
    opacity: 0.4;
    border-radius: 12px;
    transform: rotate(var(--r));
    filter: blur(0.8px) drop-shadow(0 10px 18px rgba(8, 32, 48, 0.24));
    animation: driftSoft var(--d) ease-in-out infinite;
    animation-delay: var(--delay);
}

.floater-gensan {
    --w: min(50.4vw, 567px);
    --x: 0%;
    --t: -15%;
    --r: -8deg;
    --d: 11.8s;
    --delay: -2s;
    opacity: 0.52;
    filter: blur(0.35px) drop-shadow(0 10px 18px rgba(8, 32, 48, 0.24));
}

.floater-mike {
    --w: min(21.6vw, 237px);
    --x: 10%;
    --t: 90%;
    --r: 7deg;
    --d: 10.4s;
    --delay: -5s;
}

.floater-pawbert {
    --w: min(22.65vw, 249px);
    --x: 160%;
    --t: 10%;
    --r: -6deg;
    --d: 12.6s;
    --delay: -1.5s;
}

.floater-trio {
    --w: min(51.45vw, 579px);
    --x: 80%;
    --t: 66%;
    --r: 10deg;
    --d: 9.8s;
    --delay: -4s;
    opacity: 0.5;
    filter: blur(0.35px) drop-shadow(0 10px 18px rgba(8, 32, 48, 0.24));
}

.bubble {
    position: absolute;
    left: var(--x);
    bottom: -80px;
    width: var(--size);
    height: var(--size);
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.14) 60%, rgba(255, 255, 255, 0.06));
    border: 1px solid rgba(226, 248, 255, 0.55);
    animation: floatBubble var(--dur) linear infinite;
    animation-delay: var(--delay);
}

.hero-bubbles-back .bubble {
    filter: blur(2px);
    opacity: 0.35;
}

.hero-bubbles-front .bubble {
    opacity: 0.62;
}

.hero-raz {
    position: absolute;
    z-index: 1;
    right: calc(clamp(26px, 5vw, 92px) + 74px);
    bottom: -24px;
    width: min(42.5vw, 750px);
    max-height: 80%;
    object-fit: contain;
    opacity: 0.5;
    filter: blur(0.3px) drop-shadow(0 12px 22px rgba(6, 30, 45, 0.28));
}

.hero-oc {
    position: absolute;
    z-index: 2;
    bottom: -14px;
    left: 55%;
    transform: translateX(-12%);
    width: min(64vw, 700px);
    max-height: 96%;
    object-fit: contain;
    filter: drop-shadow(0 18px 32px rgba(6, 30, 45, 0.42));
    opacity: 0.92;
}

.hero-content {
    position: relative;
    z-index: 4;
    width: min(1150px, 94%);
    padding: 24px;
}

.hero h1 {
    margin: 0;
    color: #f7fdff;
    font-size: clamp(2rem, 4.4vw, 3.5rem);
    line-height: 1.2;
    max-width: 23ch;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.42);
}

main {
    width: 100%;
    margin: 0 auto;
}

.music-spotlight {
    margin-top: 14px;
    width: min(560px, 92%);
    padding: 10px 12px;
    border-radius: 10px;
    background: linear-gradient(130deg, rgba(230, 246, 252, 0.88), rgba(225, 245, 237, 0.86));
    border: 1px solid rgba(210, 241, 255, 0.45);
    box-shadow: 0 8px 20px rgba(8, 34, 52, 0.24);
    backdrop-filter: blur(2px);
}

.music-label {
    margin: 0;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #275a78;
    font-weight: 700;
}

.music-spotlight h2 {
    margin: 3px 0 8px;
    font-size: clamp(0.88rem, 1.8vw, 1.08rem);
    line-height: 1.3;
    color: #173c56;
}

#partySagaPlayer {
    width: 100%;
    height: 34px;
    border-radius: 999px;
}

.intro {
    max-width: 1220px;
    margin: 0 auto;
    padding: 34px clamp(14px, 2.4vw, 26px) 24px;
    font-size: clamp(1rem, 1.7vw, 1.12rem);
    line-height: 1.45;
    border-bottom: 1px solid var(--line);
}

.intro p {
    margin: 0 0 6px;
}

.about-block {
    max-width: 1220px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 34px;
    padding: 30px clamp(14px, 2.4vw, 26px) 42px;
}

.about-logo-col {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.about-logo {
    width: min(100%, 470px);
    height: auto;
}

.privacy-box {
    background: var(--surface);
    border-left: 5px solid var(--soft-blue);
    border-radius: 12px;
    padding: 16px 18px;
    box-shadow: 0 8px 24px rgba(16, 39, 62, 0.08);
}

.privacy-box p {
    margin: 0;
    line-height: 1.45;
}

.privacy-box p + p {
    margin-top: 8px;
}

.privacy-box a {
    color: #0e4f82;
    font-weight: 700;
}

.about-copy-col h2 {
    margin: 2px 0 16px;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.08;
    color: #4e6777;
    font-family: "Manrope", "Segoe UI", Tahoma, sans-serif;
    font-weight: 800;
}

.about-copy-col p {
    margin: 0 0 14px;
    font-size: clamp(1rem, 1.9vw, 1.13rem);
    line-height: 1.48;
}

.site-footer {
    background: linear-gradient(150deg, #0f3248, #1f4a5e);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    color: #dceaf8;
    padding: 26px 20px 30px;
    text-align: center;
}

.pdf-modal {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: grid;
    place-items: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.pdf-modal.is-open,
.pdf-modal.is-closing {
    visibility: visible;
}

.pdf-modal.is-open {
    opacity: 1;
    pointer-events: auto;
}

.pdf-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(9, 24, 37, 0.52);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 260ms ease;
}

.pdf-panel {
    position: relative;
    z-index: 1;
    width: min(1100px, 96vw);
    height: min(82vh, 860px);
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow: 0 24px 55px rgba(8, 23, 35, 0.38);
    background: #eaf4fb;
    transform: translateY(18px) scale(0.985);
    opacity: 0;
    transition: transform 280ms ease, opacity 280ms ease;
}

.pdf-panel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 10px 14px;
    background: linear-gradient(110deg, #0f3c57, #1a6079);
    color: #f5fcff;
}

.pdf-panel__header h2 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
}

.pdf-close {
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: #f8fdff;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 6px 12px;
    cursor: pointer;
}

.pdf-close:hover {
    background: rgba(255, 255, 255, 0.28);
}

#pdfFrame {
    width: 100%;
    height: calc(100% - 49px);
    border: 0;
    background: #ffffff;
}

.pdf-modal.is-open .pdf-modal__backdrop {
    opacity: 1;
}

.pdf-modal.is-open .pdf-panel {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.pdf-modal.is-closing .pdf-modal__backdrop {
    opacity: 0;
}

.pdf-modal.is-closing .pdf-panel {
    transform: translateY(16px) scale(0.985);
    opacity: 0;
}

.friends-modal {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: grid;
    place-items: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.friends-modal.is-open,
.friends-modal.is-closing {
    visibility: visible;
}

.friends-modal.is-open {
    opacity: 1;
    pointer-events: auto;
}

.friends-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10, 30, 46, 0.48);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 240ms ease;
}

.friends-panel {
    position: relative;
    z-index: 1;
    width: min(620px, 95vw);
    padding: 24px 22px 20px;
    border-radius: 14px;
    border: 1px solid rgba(205, 237, 255, 0.4);
    background: linear-gradient(145deg, rgba(223, 242, 251, 0.96), rgba(216, 241, 233, 0.96));
    box-shadow: 0 22px 48px rgba(8, 30, 45, 0.28);
    transform: translateY(16px) scale(0.985);
    opacity: 0;
    transition: transform 260ms ease, opacity 260ms ease;
}

.friends-panel h2 {
    margin: 0 0 8px;
    color: #154161;
    font-size: clamp(1.25rem, 2.6vw, 1.65rem);
}

.friends-panel p {
    margin: 0;
    color: #1d455f;
    line-height: 1.5;
    font-size: clamp(0.96rem, 1.6vw, 1.05rem);
}

.friends-close {
    margin-top: 16px;
    border: 1px solid rgba(22, 84, 122, 0.45);
    border-radius: 999px;
    background: rgba(66, 153, 206, 0.18);
    color: #174361;
    font: inherit;
    font-weight: 700;
    padding: 7px 14px;
    cursor: pointer;
}

.friends-close:hover {
    background: rgba(66, 153, 206, 0.28);
}

.friends-modal.is-open .friends-modal__backdrop {
    opacity: 1;
}

.friends-modal.is-open .friends-panel {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.friends-modal.is-closing .friends-modal__backdrop {
    opacity: 0;
}

.friends-modal.is-closing .friends-panel {
    transform: translateY(14px) scale(0.985);
    opacity: 0;
}

.footer-grid {
    width: min(1100px, 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, minmax(180px, 1fr));
    gap: 14px;
}

.footer-item {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 10px;
    padding: 10px 12px;
    text-align: center;
}

.footer-name,
.footer-date {
    margin: 0;
    line-height: 1.5;
}

.footer-name {
    font-weight: 700;
}

.footer-date {
    margin-top: 2px;
    color: #c4d9ee;
    font-size: 0.94rem;
}

@media (max-width: 1000px) {
    .main-nav {
        flex-direction: column;
        align-items: stretch;
        padding: 12px 16px;
    }

    .menu {
        justify-content: flex-start;
    }

    .hero-oc {
        transform: translateX(-18%);
        width: min(84vw, 620px);
        opacity: 0.82;
    }

    .hero-left-floaters {
        width: min(35vw, 250px);
        left: 51px;
    }

    .floater-card {
        opacity: 0.34;
    }

    .hero-raz {
        right: 81px;
        width: min(62.5vw, 738px);
        opacity: 0.42;
    }

    .about-block {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 640px) {
    .brand-name {
        font-size: 1rem;
    }

    .menu a {
        font-size: 0.88rem;
        padding: 6px 8px;
    }

    .hero {
        min-height: 64vh;
    }

    .hero-content {
        padding: 14px;
    }

    .hero h1 {
        font-size: clamp(1.55rem, 7vw, 2.2rem);
        max-width: 18ch;
    }

    .hero-oc {
        left: 52%;
        width: min(96vw, 490px);
        opacity: 0.7;
    }

    .hero-left-floaters {
        width: 150px;
        left: 41px;
        top: 14%;
        opacity: 0.6;
    }

    .floater-card {
        opacity: 0.22;
    }

    .hero-raz {
        width: min(92vw, 610px);
        right: 8px;
        bottom: -6px;
        opacity: 0.52;
    }

    .intro {
        padding: 24px 14px 18px;
    }

    .music-spotlight {
        margin-top: 10px;
        width: min(430px, 96%);
        border-radius: 10px;
    }

    .about-copy-col h2 {
        font-size: clamp(1.9rem, 10vw, 2.8rem);
    }

    .footer-grid {
        grid-template-columns: repeat(2, minmax(160px, 1fr));
        gap: 10px;
    }

    .hero-bubbles-front .bubble {
        opacity: 0.45;
    }

    .pdf-modal {
        padding: 10px;
    }

    .pdf-panel {
        width: 100%;
        height: min(86vh, 860px);
        border-radius: 10px;
    }

    .friends-modal {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 12px;
    }

    .friends-panel {
        width: min(92vw, 420px);
        margin: 0 auto;
        padding: 18px 16px 16px;
        border-radius: 12px;
    }
}

@keyframes floatBubble {
    0% {
        transform: translate3d(0, 0, 0) scale(0.86);
        opacity: 0;
    }

    12% {
        opacity: inherit;
    }

    65% {
        transform: translate3d(12px, -62vh, 0) scale(1);
    }

    100% {
        transform: translate3d(-10px, -116vh, 0) scale(1.12);
        opacity: 0;
    }
}

@keyframes driftSoft {
    0%,
    100% {
        transform: translate3d(0, 0, 0) rotate(var(--r));
    }

    50% {
        transform: translate3d(10px, -10px, 0) rotate(calc(var(--r) + 1.8deg));
    }
}